Patent: Canon RF 200-500mm f/4L & RF 300-800mm f/8 IS USM Lenses
Several big Canon RF telephoto zoom lens designs appear in a US patent application, including: Canon RF 200-500mm f/4L IS
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Several big Canon RF telephoto zoom lens designs appear in a US patent application, including: Canon RF 200-500mm f/4L IS
Continue readingIn addition to the upcoming RF 400mm f/2.8L IS USM lens and RF 600mm f/4L IS USM lens, Canon is
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